Answer:
una comunidad similar de los mismos organismos y su entorno físico.
Explanation:
Buena pregunta.
Human males possess an XY pairing.
If I am not wrong, I believe the answer is Producers. The reason as to why I say that producers is the answer is because in every food chain, there needs to be a base. That base is what provides the starting energy that will later on move up in the food chain.